Finding the Fourth Proportional to 889,410,216.58, 1,226,670,425.96 and 781,889,643.97
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Solution
The fourth proportional to 889,410,216.58, 1,226,670,425.96 and 781,889,643.97 is: 1,078,378,553.27
Step by Step Solution
- Step 1: Write the proportion equation
889,410,216.58 : 1,226,670,425.96 = 781,889,643.97 : x - Step 2: Convert to fraction form
889,410,216.58/1,226,670,425.96 = 781,889,643.97/x - Step 3: Cross multiply
889,410,216.58x = 1,226,670,425.96 × 781,889,643.97 - Step 4: Simplify right side
889,410,216.58x = 959,120,902,622,392,704 - Step 5: Solve for x
x = 959,120,902,622,392,704/889,410,216.58 - Step 6: Final answer
x = 1,078,378,553.27
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.